CN104992683A - Gamma adjustment method and device of liquid crystal display panel - Google Patents
Gamma adjustment method and device of liquid crystal display panel Download PDFInfo
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- CN104992683A CN104992683A CN201510387860.XA CN201510387860A CN104992683A CN 104992683 A CN104992683 A CN 104992683A CN 201510387860 A CN201510387860 A CN 201510387860A CN 104992683 A CN104992683 A CN 104992683A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
Abstract
The invention provides a Gamma adjustment method of a liquid crystal display panel. The method includes the following steps that: the display area of the liquid crystal display panel is divided, so that n sub display areas can be obtained; a full gray-scale image is divided into n groups, so that n gray-scale image groups can be obtained; the n sub display areas are made to display a first selected gray-scale image in a corresponding gray-scale image group simultaneously; photoelectric sensors arranged on the sub display areas are utilized to detect the brightness of the first selected gray-scale image; the Gamma curve of the liquid crystal display panel is obtained according to the gray scale of the first selected gray-scale image and the brightness of the first selected gray-scale image; and the Gamma curve of the liquid crystal display panel is adjusted according to a preset Gamma curve. The invention also provides a Gamma adjustment device of the liquid crystal display panel. The Gamma adjustment method and device of the liquid crystal display panel of the invention have the advantages of short operation time and low operation cost in Gamma adjustment operation.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly relate to a kind of Gamma method of adjustment and device of display panels.
Background technology
Along with the development of society, the requirement of people to the display quality of display panels is more and more higher, particularly more and more higher to the requirement of the GTG of reflection image and the gamma curve of brightness change.
The Gamma adjustment process of existing display panels is generally: use display panels to show the gray scale image of 0 GTG to 255 GTG respectively, then detect the display brightness of each gray scale image, thus form the gamma curve of the grey menu of the display panels of 0 GTG to 255 GTG; Subsequently the gamma curve of detection and default gamma curve are contrasted, and adjust according to the display brightness of comparing result to each grey menu, thus realize the adjustment to gamma curve.
But in actual mechanical process, display panels needs display 256 grey menu, and the brightness collection carrying out 256 grey menu could obtain corresponding gamma curve, and the running time is longer and running cost is higher simultaneously.
Therefore, be necessary Gamma method of adjustment and device that a kind of display panels is provided, to solve the problem existing for prior art.
Summary of the invention
The object of the present invention is to provide a kind of running time short and the Gamma method of adjustment of the display panels that running cost is lower and device, with the technical matters that the running time is longer and running cost is higher of the Gamma method of adjustment and device that solve existing display panels.
For solving the problem, technical scheme provided by the invention is as follows:
The embodiment of the present invention provides a kind of Gamma method of adjustment of display panels, and it comprises:
Steps A 1, the viewing area of display panels to be divided, to obtain n sub-viewing area, wherein n be more than or equal to 2 positive integer;
Steps A 2, full grey menu is divided into n group, to obtain n grey menu group, wherein said grey menu group and described sub-viewing area one_to_one corresponding, each described grey menu group comprises multiple grey menu;
Steps A 3, make n described sub-viewing area show the selected grey menu of first in corresponding described grey menu group, the wherein said first selected grey menu is the arbitrary described grey menu in described grey menu group simultaneously;
Steps A 4, use are arranged on the brightness that photoelectric sensor on described sub-viewing area detects the described first selected grey menu;
Steps A 5, judge whether there is grey menu to be detected in described grey menu group, wherein said grey menu to be detected is the described grey menu not becoming the described first selected grey menu;
First selected grey menu as described in grey menu replacement to be detected in grey menu group as described in then using accordingly as existed, forwards steps A 3 subsequently to; If do not existed, forward steps A 6 to;
Steps A 6, according to the GTG of the described first selected grey menu and the brightness of the described first selected grey menu, obtain the gamma curve of described display panels; And
The gamma curve of gamma curve to described display panels that steps A 7, basis are preset adjusts.
In the Gamma method of adjustment of display panels of the present invention, described steps A 3 is specially:
Each described sub-viewing area shows the selected grey menu of described first in corresponding described grey menu group from high to low or from low to high by grey decision-making.
In the Gamma method of adjustment of display panels of the present invention, described steps A 4 is specially:
A41, described photoelectric sensor is arranged on the middle part of described sub-viewing area, and the light receiving surface of described photoelectric sensor is close to described sub-viewing area;
A42, described photoelectric sensor is used to detect the simulating signal of the brightness of the described first selected grey menu; And
A43, the simulating signal of the brightness of the described first selected grey menu is converted into the digital signal of the brightness of the described first selected grey menu.
In the Gamma method of adjustment of display panels of the present invention, described steps A 7 is specially:
A71, the gamma curve determining described display panels and described default gamma curve are in the luminance difference of each GTG;
A72, described luminance difference according to each GTG, carry out luminance compensation, to obtain brightness offset value to the described grey menu of each GTG of described display panels; And
A73, use described brightness offset value, the gamma curve of described display panels is adjusted.
In the Gamma method of adjustment of display panels of the present invention, described steps A 72 is specially:
According to the described luminance difference of each GTG, the described grey menu of each GTG of display panels described in Fourier pair is used to carry out luminance compensation, to obtain described brightness offset value.
In the Gamma method of adjustment of display panels of the present invention, the Gamma method of adjustment of described display panels also comprises:
Steps A 8, store the described brightness offset value of each GTG, and described brightness offset value is burned onto in the driving chip of described display panels.
In the Gamma method of adjustment of display panels of the present invention, described steps A 8 is specially:
By MIPI interface, described brightness offset value is burned onto in the driving chip of described display panels.
In the Gamma method of adjustment of display panels of the present invention, the area equation of each described sub-viewing area.
In the Gamma method of adjustment of display panels of the present invention, the quantity of the described grey menu in each described grey menu group is equal.
The embodiment of the present invention also provides a kind of Gamma adjusting gear of display panels, and it comprises:
Viewing area divides module, for dividing the viewing area of display panels, to obtain n sub-viewing area, wherein n be more than or equal to 2 positive integer;
Full grey menu divides module, for full grey menu is divided into n group, to obtain n grey menu group, and wherein said grey menu group and described sub-viewing area one_to_one corresponding, each described grey menu group comprises multiple grey menu;
Display module, for making n described sub-viewing area show the selected grey menu of first in corresponding described grey menu group simultaneously, the wherein said first selected grey menu is the arbitrary described grey menu in described grey menu group;
Brightness detection module, is arranged on for using the brightness that photoelectric sensor on described sub-viewing area detects the described first selected grey menu;
Judge module, for judging whether there is grey menu to be detected in described grey menu group, wherein said grey menu to be detected is the described grey menu not becoming the described first selected grey menu;
Grey menu replacement module, replaces the described first selected grey menu for using the grey menu to be detected in corresponding described grey menu group;
Gamma curve acquisition module, for according to the GTG of the described first selected grey menu and the brightness of the described first selected grey menu, obtains the gamma curve of described display panels; And
Gamma curve adjusting module, for adjusting according to the gamma curve of gamma curve to described display panels preset.
Compared to Gamma method of adjustment and the device of existing display panels, the Gamma method of adjustment of display panels of the present invention and device use multiple sub-viewing area to show multiple grey menu simultaneously, substantially reduce the running time of gamma curve adjustment operation, reduce the running cost of gamma curve adjustment operation simultaneously; Solve the Gamma method of adjustment of existing display panels and the technical matters that the running time is longer and running cost is higher of device.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below:
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the preferred embodiment of the Gamma method of adjustment of display panels of the present invention;
Fig. 2 is the process flow diagram of the steps A 4 of the preferred embodiment of the Gamma method of adjustment of display panels of the present invention;
Fig. 3 is the process flow diagram of the steps A 7 of the preferred embodiment of the Gamma method of adjustment of display panels of the present invention;
Fig. 4 is the structural representation of the preferred embodiment of the Gamma adjusting gear of display panels of the present invention.
Embodiment
The explanation of following embodiment is graphic with reference to what add, can in order to the specific embodiment implemented in order to illustrate the present invention.The direction term that the present invention mentions, such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side " etc., be only the direction with reference to annexed drawings.Therefore, the direction term of use is in order to illustrate and to understand the present invention, and is not used to limit the present invention.
In the drawings, the unit that structure is similar represents with identical label.
Please refer to Fig. 1, Fig. 1 is the process flow diagram of the preferred embodiment of the Gamma method of adjustment of display panels of the present invention.The Gamma method of adjustment of the display panels of this preferred embodiment comprises:
Steps A 1, divides the viewing area of display panels, to obtain n sub-viewing area;
Steps A 2, is divided into n group by full grey menu, to obtain n grey menu group;
Steps A 3, makes n sub-viewing area show the selected grey menu of first in corresponding grey menu group simultaneously;
Steps A 4, uses the photoelectric sensor be arranged on sub-viewing area to detect the brightness of the first selected grey menu;
Steps A 5, judges whether there is grey menu to be detected in grey menu group, as there is grey menu to be detected in grey menu group, then uses the grey menu to be detected in corresponding grey menu group to replace the first selected grey menu, forwards steps A 3 subsequently to; As there is not grey menu to be detected in grey menu group, then forward steps A 6 to;
Steps A 6, according to the GTG of the first selected grey menu and the brightness of the first selected grey menu, obtains the gamma curve of display panels;
Steps A 7, the gamma curve of gamma curve to display panels according to presetting adjusts;
Steps A 8, stores the brightness offset value of each GTG, and is burned onto in the driving chip of display panels by brightness offset value.
The following detailed description of the idiographic flow of each step of the Gamma method of adjustment of the display panels of this preferred embodiment.
In steps A 1, the viewing area of Gamma adjusting gear to display panels divides, to obtain n sub-viewing area; Wherein n be more than or equal to 2 positive integer, for the ease of the division operation of sub-viewing area, the area of every sub-viewing area is all equal.As being divided into two sub-viewing areas, can to adopt up and down or the mode of left-right situs arranges two sub-viewing areas; As being divided into three sub-viewing areas, can adopt the mode of upper, middle and lower or left, center, right arrangement that three sub-viewing areas are set; As being divided into four sub-viewing areas, the mode that matrix pattern can be adopted to arrange arranges four sub-viewing areas.Forward steps A 2 subsequently to.
In steps A 2, the full grey menu of display panels is divided into n group by Gamma adjusting gear, to obtain n grey menu group.Such grey menu group can with sub-viewing area one_to_one corresponding, wherein each grey menu group comprises the grey menu of multiple different GTG.Forward steps A 3 subsequently to.
In steps A 3, the in the corresponding grey menu group determined in step display A2 while of n the sub-viewing area that Gamma adjusting gear uses steps A 1 to determine first selected grey menu.Wherein the first selected grey menu is the arbitrary grey menu in grey menu group.Namely every sub-viewing area needs, by setting the first selected grey menu, to show all grey menu in corresponding grey menu group.For the ease of sub-viewing area display grey menu, every sub-viewing area can show the selected grey menu of first in corresponding grey menu group from high to low or from low to high by grey decision-making.Forward steps A 4 subsequently to.
In steps A 4, Gamma adjusting gear uses the photoelectric sensor be arranged on sub-viewing area to detect the brightness of the first selected grey menu, specifically can refer to Fig. 2, Fig. 2 is the process flow diagram of the steps A 4 of the preferred embodiment of the Gamma method of adjustment of display panels of the present invention.This steps A 4 comprises:
Steps A 41, photoelectric sensor is arranged on the middle part of sub-viewing area by Gamma adjusting gear, and the light receiving surface of photoelectric sensor is close to sub-viewing area, with the display brightness of good inductor viewing area, avoid the impact that the brightness of the grey menu of adjacent sub-viewing area detects the brightness of the sub-viewing area of one's respective area.Forward steps A 42 subsequently to.
Steps A 42, Gamma adjusting gear uses photoelectric sensor to detect the simulating signal of the brightness of the first selected grey menu; Forward steps A 43 subsequently to.
The simulating signal of the brightness of the first selected grey menu is converted to the digital signal of the brightness of the first selected grey menu by steps A 43, Gamma adjusting gear, carries out luminance compensation process so that follow-up.Forward steps A 5 subsequently to.
In steps A 5, Gamma adjusting gear judges whether there is grey menu to be detected in grey menu group, and wherein grey menu to be detected is the grey menu not becoming the first selected grey menu; As there is grey menu to be detected in grey menu group, then use the grey menu to be detected in corresponding grey menu group to replace the first selected grey menu, forward steps A 3 subsequently to, to obtain the brightness of all grey menu in grey menu group.As there is not grey menu to be detected in grey menu group, then the brightness of all grey menu obtained in grey menu group is described, then forwards steps A 6 to.
In steps A 6, Gamma adjusting gear, according to the brightness of the first selected grey menu obtained in the GTG of the first selected grey menu and steps A 4, obtains the gamma curve of display panels, forwards steps A 7 subsequently to.
In steps A 7, Gamma adjusting gear adjusts according to the Gamma of the gamma curve preset to the display panels obtained in steps A 6.Specifically can refer to Fig. 3, Fig. 3 is the process flow diagram of the steps A 7 of the preferred embodiment of the Gamma method of adjustment of display panels of the present invention.This steps A 7 comprises:
Gamma curve and the luminance difference of the gamma curve preset at each GTG of steps A 71, Gamma adjusting gear determination display panels;
The luminance difference of each GTG that steps A 72, Gamma adjusting gear obtains according to steps A 71, uses the grey menu of each GTG of Fourier pair display panels to carry out luminance compensation, to obtain the brightness offset value of each GTG;
Steps A 73, the brightness offset value that Gamma adjusting gear uses steps A 72 to obtain, the gamma curve of display panels is adjusted, and whether the gamma curve detecting the display panels after adjustment meets default gamma curve, forwards steps A 8 subsequently to.
In steps A 8, gamma curve due to the display panels in steps A 7 has confirmed that adjustment is correct, Gamma adjusting gear stores the brightness offset value of each GTG subsequently, and by MIPI interface (mobile Industry Processor Interface, Mobile IndustryProcessor Interface) brightness offset value is burned onto in the driving chip of display panels, to drive the picture brightness of display panels.
So namely, complete the Gamma adjustment process of the display panels of this preferred embodiment.
The Gamma method of adjustment of display panels of the present invention uses multiple sub-viewing area to show multiple grey menu simultaneously, substantially reduces the running time of gamma curve adjustment operation, reduces the running cost of gamma curve adjustment operation simultaneously.
The present invention also provides a kind of Gamma adjusting gear of display panels, please refer to Fig. 4, and Fig. 4 is the structural representation of the preferred embodiment of the Gamma adjusting gear of display panels of the present invention.The Gamma adjusting gear 40 of the display panels of this preferred embodiment comprises viewing area and divides module 41, full grey menu division module 42, display module 43, brightness detection module 44, judge module 45, grey menu replacement module 46, gamma curve acquisition module 47, gamma curve adjusting module 48 and memory module 49.
Viewing area divides module 41 for dividing the viewing area of display panels, to obtain n sub-viewing area, wherein n be more than or equal to 2 positive integer.Full grey menu divides module 42 for full grey menu is divided into n group, and to obtain n grey menu group, wherein grey menu group and sub-viewing area one_to_one corresponding, each grey menu group comprises multiple grey menu.Display module 43 shows the selected grey menu of first in corresponding grey menu group for making n sub-viewing area simultaneously, and wherein the first selected grey menu is the arbitrary grey menu in grey menu group.The brightness of brightness detection module 44 for using the photoelectric sensor be arranged on sub-viewing area to detect the first selected grey menu.Judge module 45 is for judging whether there is grey menu to be detected in grey menu group, and wherein grey menu to be detected is the grey menu not becoming the first selected grey menu.Grey menu replacement module 46 replaces the first selected grey menu for using the grey menu to be detected in corresponding grey menu group.Gamma curve acquisition module 47, for according to the GTG of the first selected grey menu and the brightness of the first selected grey menu, obtains the gamma curve of display panels.Gamma curve adjusting module 48 is for adjusting according to the gamma curve of gamma curve to display panels preset.Brightness offset value for storing the brightness offset value of each GTG, and is burned onto in the driving chip of display panels by memory module 49.
When the Gamma adjusting gear 40 of the display panels of this preferred embodiment uses, first the viewing area of viewing area division module 41 pairs of display panels divides, to obtain n sub-viewing area; Wherein n be more than or equal to 2 positive integer, for the ease of the division operation of sub-viewing area, the area of every sub-viewing area is all equal.As being divided into two sub-viewing areas, can to adopt up and down or the mode of left-right situs arranges two sub-viewing areas; As being divided into three sub-viewing areas, can adopt the mode of upper, middle and lower or left, center, right arrangement that three sub-viewing areas are set; As being divided into four sub-viewing areas, the mode that matrix pattern can be adopted to arrange arranges four sub-viewing areas.
Full grey menu divides module 42 and the full grey menu of display panels is divided into n group, to obtain n grey menu group subsequently.Such grey menu group can with sub-viewing area one_to_one corresponding, wherein each grey menu group comprises the grey menu of multiple different GTG.
Then display module 43 uses viewing area to divide the n that determines of a module 41 sub-viewing area to show full grey menu simultaneously and divide the first selected grey menu in the corresponding grey menu group that module 42 determines.Wherein the first selected grey menu is the arbitrary grey menu in grey menu group.Namely every sub-viewing area needs, by setting the first selected grey menu, to show all grey menu in corresponding grey menu group.For the ease of sub-viewing area display grey menu, every sub-viewing area can show the selected grey menu of first in corresponding grey menu group from high to low or from low to high by grey decision-making.
Brightness detection module 44 uses the photoelectric sensor be arranged on sub-viewing area to detect the brightness of the first selected grey menu subsequently.
Then judge module 45 judges whether there is grey menu to be detected in grey menu group, and wherein grey menu to be detected is the grey menu not becoming the first selected grey menu; As there is grey menu to be detected in grey menu group, the grey menu to be detected in corresponding grey menu group is then used to replace the first selected grey menu, display module 43 reuses the first selected grey menu of sub-viewing area simultaneously in corresponding grey menu group subsequently, to obtain the brightness of all grey menu in grey menu group.As there is not grey menu to be detected in grey menu group, then the brightness of all grey menu obtained in grey menu group is described.
Gamma curve acquisition module 47 selectes the brightness of grey menu according to the GTG of the first selected grey menu and first of brightness detection module 44 acquisition subsequently, obtains the gamma curve of display panels.
Then gamma curve adjusting module 48 adjusts according to the gamma curve of gamma curve to the display panels that gamma curve acquisition module 47 obtains preset.
Finally because the gamma curve of display panels has confirmed that adjustment is correct, memory module 49 stores the brightness offset value of each GTG, and by MIPI interface (mobile Industry Processor Interface, Mobile Industry Processor Interface) brightness offset value is burned onto in the driving chip of display panels, to drive the picture brightness of display panels.
So namely, complete the Gamma adjustment process of the display panels of this preferred embodiment.
Description in the preferred embodiment of the method for adjustment of the specific works principle of the Gamma adjusting gear of the display panels of this preferred embodiment and the Gamma of above-mentioned display panels is same or similar, specifically refers to the associated description in the preferred embodiment of the method for adjustment of the Gamma of above-mentioned display panels.
The Gamma method of adjustment of display panels of the present invention and device use multiple sub-viewing area to show multiple grey menu simultaneously, substantially reduce the running time of gamma curve adjustment operation, reduce the running cost of gamma curve adjustment operation simultaneously; Solve the Gamma method of adjustment of existing display panels and the technical matters that the running time is longer and running cost is higher of device.
In sum; although the present invention discloses as above with preferred embodiment; but above preferred embodiment is also not used to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (10)
1. a Gamma method of adjustment for display panels, is characterized in that,
Steps A 1, the viewing area of display panels to be divided, to obtain n sub-viewing area, wherein n be more than or equal to 2 positive integer;
Steps A 2, full grey menu is divided into n group, to obtain n grey menu group, wherein said grey menu group and described sub-viewing area one_to_one corresponding, each described grey menu group comprises multiple grey menu;
Steps A 3, make n described sub-viewing area show the selected grey menu of first in corresponding described grey menu group, the wherein said first selected grey menu is the arbitrary described grey menu in described grey menu group simultaneously;
Steps A 4, use are arranged on the brightness that photoelectric sensor on described sub-viewing area detects the described first selected grey menu;
Steps A 5, judge whether there is grey menu to be detected in described grey menu group, wherein said grey menu to be detected is the described grey menu not becoming the described first selected grey menu;
First selected grey menu as described in grey menu replacement to be detected in grey menu group as described in then using accordingly as existed, forwards steps A 3 subsequently to; If do not existed, forward steps A 6 to;
Steps A 6, according to the GTG of the described first selected grey menu and the brightness of the described first selected grey menu, obtain the gamma curve of described display panels; And
The gamma curve of gamma curve to described display panels that steps A 7, basis are preset adjusts.
2. the Gamma method of adjustment of display panels according to claim 1, is characterized in that, described steps A 3 is specially:
Each described sub-viewing area shows the selected grey menu of described first in corresponding described grey menu group from high to low or from low to high by grey decision-making.
3. the Gamma method of adjustment of display panels according to claim 1, is characterized in that, described steps A 4 is specially:
A41, described photoelectric sensor is arranged on the middle part of described sub-viewing area, and the light receiving surface of described photoelectric sensor is close to described sub-viewing area;
A42, described photoelectric sensor is used to detect the simulating signal of the brightness of the described first selected grey menu; And
A43, the simulating signal of the brightness of the described first selected grey menu is converted into the digital signal of the brightness of the described first selected grey menu.
4. the Gamma method of adjustment of display panels according to claim 1, is characterized in that, described steps A 7 is specially:
A71, the gamma curve determining described display panels and described default gamma curve are in the luminance difference of each GTG;
A72, described luminance difference according to each GTG, carry out luminance compensation, to obtain brightness offset value to the described grey menu of each GTG of described display panels; And
A73, use described brightness offset value, the gamma curve of described display panels is adjusted.
5. the Gamma method of adjustment of display panels according to claim 4, is characterized in that, described steps A 72 is specially:
According to the described luminance difference of each GTG, the described grey menu of each GTG of display panels described in Fourier pair is used to carry out luminance compensation, to obtain described brightness offset value.
6. the Gamma method of adjustment of display panels according to claim 4, is characterized in that, the Gamma method of adjustment of described display panels also comprises:
Steps A 8, store the described brightness offset value of each GTG, and described brightness offset value is burned onto in the driving chip of described display panels.
7. the Gamma method of adjustment of display panels according to claim 6, is characterized in that, described steps A 8 is specially:
By MIPI interface, described brightness offset value is burned onto in the driving chip of described display panels.
8. the Gamma method of adjustment of display panels according to claim 1, is characterized in that, the area equation of each described sub-viewing area.
9. the Gamma method of adjustment of liquid crystal panel according to claim 1, is characterized in that, the quantity of the described grey menu in each described grey menu group is equal.
10. a Gamma adjusting gear for display panels, is characterized in that, comprising:
Viewing area divides module, for dividing the viewing area of display panels, to obtain n sub-viewing area, wherein n be more than or equal to 2 positive integer;
Full grey menu divides module, for full grey menu is divided into n group, to obtain n grey menu group, and wherein said grey menu group and described sub-viewing area one_to_one corresponding, each described grey menu group comprises multiple grey menu;
Display module, for making n described sub-viewing area show the selected grey menu of first in corresponding described grey menu group simultaneously, the wherein said first selected grey menu is the arbitrary described grey menu in described grey menu group;
Brightness detection module, is arranged on for using the brightness that photoelectric sensor on described sub-viewing area detects the described first selected grey menu;
Judge module, for judging whether there is grey menu to be detected in described grey menu group, wherein said grey menu to be detected is the described grey menu not becoming the described first selected grey menu;
Grey menu replacement module, replaces the described first selected grey menu for using the grey menu to be detected in corresponding described grey menu group;
Gamma curve acquisition module, for according to the GTG of the described first selected grey menu and the brightness of the described first selected grey menu, obtains the gamma curve of described display panels; And
Gamma curve adjusting module, for adjusting according to the gamma curve of gamma curve to described display panels preset.
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| CN201510387860.XA CN104992683B (en) | 2015-07-02 | 2015-07-02 | The Gamma methods of adjustment and device of liquid crystal display panel |
| PCT/CN2015/086462 WO2017000358A1 (en) | 2015-07-02 | 2015-08-10 | Gamma adjusting method and apparatus for liquid crystal display panel |
| US14/783,728 US9892671B2 (en) | 2015-07-02 | 2015-08-10 | Method and device for performing gamma correction for LCD panels |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601167A (en) * | 2016-12-20 | 2017-04-26 | 上海天马有机发光显示技术有限公司 | Gray scale compensation method, apparatus and system of display panel |
| CN107331350A (en) * | 2017-08-17 | 2017-11-07 | 武汉华星光电技术有限公司 | The driving method and system of a kind of displayer |
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Families Citing this family (3)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000197071A (en) * | 1998-12-25 | 2000-07-14 | Victor Co Of Japan Ltd | White balance adjustment circuit for matrix type display device and its method |
| US6686953B1 (en) * | 2000-03-01 | 2004-02-03 | Joseph Holmes | Visual calibration target set method |
| CN101707050A (en) * | 2009-12-01 | 2010-05-12 | 福建华映显示科技有限公司 | Gamma voltage selecting method of liquid crystal display (LCD) device and system thereof |
| CN102968943A (en) * | 2012-11-08 | 2013-03-13 | 京东方科技集团股份有限公司 | Generating method of gama value test card of display device and measuring method of gama value |
| CN103985333A (en) * | 2013-12-26 | 2014-08-13 | 上海中航光电子有限公司 | Gamma value measuring method of display apparatus |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002333870A (en) * | 2000-10-31 | 2002-11-22 | Matsushita Electric Ind Co Ltd | Liquid crystal display device, el display device and drive method therefor and display pattern evaluation method of subpixel |
| TWI225232B (en) * | 2002-07-12 | 2004-12-11 | Toshiba Matsushita Display Tec | Display device |
| US7071456B2 (en) * | 2004-03-30 | 2006-07-04 | Poplin Dwight D | Camera module with ambient light detection |
| KR100660869B1 (en) * | 2005-07-06 | 2006-12-26 | 삼성전자주식회사 | Image sensor and method for subsampling of enhanced frame rate and display quality |
| KR100830297B1 (en) * | 2006-09-26 | 2008-05-19 | 삼성에스디아이 주식회사 | Light emitting display device and driving method for same |
| US7884832B2 (en) * | 2007-04-13 | 2011-02-08 | Global Oled Technology Llc | Calibrating RGBW displays |
| CN104008736B (en) * | 2013-02-26 | 2017-07-07 | 合肥京东方光电科技有限公司 | Automatically adjust device, the optics debugging apparatus of liquid crystal display gamma curve |
| CN103310752B (en) * | 2013-06-05 | 2015-07-22 | 合肥京东方光电科技有限公司 | Gamma voltage adjusting method and gamma voltage adjusting system |
| CN103761945B (en) * | 2013-12-25 | 2016-02-24 | 深圳市华星光电技术有限公司 | A kind of gamma curve method of adjustment of TFT-LCD liquid crystal display and adjusting gear |
| CN104299565B (en) * | 2014-10-13 | 2017-06-06 | 西安诺瓦电子科技有限公司 | The low gray scale correction method and system of LED display |
-
2015
- 2015-07-02 CN CN201510387860.XA patent/CN104992683B/en active Active
- 2015-08-10 US US14/783,728 patent/US9892671B2/en active Active
- 2015-08-10 WO PCT/CN2015/086462 patent/WO2017000358A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000197071A (en) * | 1998-12-25 | 2000-07-14 | Victor Co Of Japan Ltd | White balance adjustment circuit for matrix type display device and its method |
| US6686953B1 (en) * | 2000-03-01 | 2004-02-03 | Joseph Holmes | Visual calibration target set method |
| CN101707050A (en) * | 2009-12-01 | 2010-05-12 | 福建华映显示科技有限公司 | Gamma voltage selecting method of liquid crystal display (LCD) device and system thereof |
| CN102968943A (en) * | 2012-11-08 | 2013-03-13 | 京东方科技集团股份有限公司 | Generating method of gama value test card of display device and measuring method of gama value |
| CN103985333A (en) * | 2013-12-26 | 2014-08-13 | 上海中航光电子有限公司 | Gamma value measuring method of display apparatus |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601167B (en) * | 2016-12-20 | 2019-10-01 | 上海天马有机发光显示技术有限公司 | A kind of gray level compensation method of display panel, device and system |
| CN106601167A (en) * | 2016-12-20 | 2017-04-26 | 上海天马有机发光显示技术有限公司 | Gray scale compensation method, apparatus and system of display panel |
| CN107331350A (en) * | 2017-08-17 | 2017-11-07 | 武汉华星光电技术有限公司 | The driving method and system of a kind of displayer |
| CN107331350B (en) * | 2017-08-17 | 2019-12-13 | 武汉华星光电技术有限公司 | Driving method and system of AMOLED display |
| CN107665666A (en) * | 2017-10-31 | 2018-02-06 | 京东方科技集团股份有限公司 | The gamma electric voltage bearing calibration of display module and system |
| CN107967144A (en) * | 2017-12-08 | 2018-04-27 | 京东方科技集团股份有限公司 | A kind of data burning method and device |
| US11636811B2 (en) | 2017-12-08 | 2023-04-25 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Data burning method and data burning device |
| CN110400532A (en) * | 2018-04-25 | 2019-11-01 | 咸阳彩虹光电科技有限公司 | A kind of method and apparatus of quick adjustment gamma voltage |
| CN109637416A (en) * | 2019-01-07 | 2019-04-16 | 成都中电熊猫显示科技有限公司 | Method of adjustment, device and the equipment of panel luminance |
| CN109754770A (en) * | 2019-02-25 | 2019-05-14 | 惠科股份有限公司 | The brightness adjusting method and display device of display panel |
| CN109979389A (en) * | 2019-04-08 | 2019-07-05 | 成都京东方光电科技有限公司 | Gamma correction method and device, display device, computer storage medium |
| US11217141B2 (en) | 2019-04-08 | 2022-01-04 | Boe Technology Group Co., Ltd. | Gamma correction method and apparatus, display apparatus, computer storage medium |
| CN109949744A (en) * | 2019-04-17 | 2019-06-28 | 京东方科技集团股份有限公司 | Gamma electric voltage bearing calibration and device |
| CN109949744B (en) * | 2019-04-17 | 2021-04-27 | 京东方科技集团股份有限公司 | Gamma voltage correction method and device |
| CN110675823A (en) * | 2019-09-30 | 2020-01-10 | 昆山国显光电有限公司 | Brightness adjusting method of AMOLED display panel |
| CN111415616A (en) * | 2020-04-27 | 2020-07-14 | 京东方科技集团股份有限公司 | Method for improving picture display quality, time sequence controller and display device |
| CN111415616B (en) * | 2020-04-27 | 2021-04-13 | 京东方科技集团股份有限公司 | Method for improving picture display quality, time sequence controller and display device |
| US11862077B2 (en) | 2020-04-27 | 2024-01-02 | Boe Technology Group Co., Ltd. | Method for improving image display quality, timing controller and display apparatus |
| CN116686037A (en) * | 2020-10-19 | 2023-09-01 | 西安诺瓦星云科技股份有限公司 | Gray scale measurement method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170140692A1 (en) | 2017-05-18 |
| CN104992683B (en) | 2017-11-17 |
| US9892671B2 (en) | 2018-02-13 |
| WO2017000358A1 (en) | 2017-01-05 |
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